The system, developed by the company ThruVision, is normally used by astronomers to study dying stars. According to its inventors, although the T5000 can "see" through clothing, it does not reveal people's physical details or subject them to any "harmful radiation" such as that associated with security systems that use X-rays.
The camera uses "passive imaging technology" to identify the natural electromagnetic rays, known as terahertz rays or T-rays, that objects emit. The T5000 was exhibited on March 12 and 13 at a scientific exhibition organized by the British government.

